feat(jdk8): move files to new folder to avoid resources compiled.
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jdkSrc/jdk8/javax/swing/text/Caret.java
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204
jdkSrc/jdk8/javax/swing/text/Caret.java
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/*
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* Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package javax.swing.text;
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import java.awt.Graphics;
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import java.awt.Point;
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import javax.swing.Action;
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import javax.swing.event.ChangeListener;
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/**
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* A place within a document view that represents where
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* things can be inserted into the document model. A caret
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* has a position in the document referred to as a dot.
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* The dot is where the caret is currently located in the
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* model. There is
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* a second position maintained by the caret that represents
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* the other end of a selection called mark. If there is
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* no selection the dot and mark will be equal. If a selection
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* exists, the two values will be different.
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* <p>
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* The dot can be placed by either calling
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* <code>setDot</code> or <code>moveDot</code>. Setting
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* the dot has the effect of removing any selection that may
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* have previously existed. The dot and mark will be equal.
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* Moving the dot has the effect of creating a selection as
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* the mark is left at whatever position it previously had.
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*
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* @author Timothy Prinzing
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*/
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public interface Caret {
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/**
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* Called when the UI is being installed into the
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* interface of a JTextComponent. This can be used
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* to gain access to the model that is being navigated
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* by the implementation of this interface.
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*
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* @param c the JTextComponent
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*/
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public void install(JTextComponent c);
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/**
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* Called when the UI is being removed from the
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* interface of a JTextComponent. This is used to
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* unregister any listeners that were attached.
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*
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* @param c the JTextComponent
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*/
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public void deinstall(JTextComponent c);
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/**
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* Renders the caret. This method is called by UI classes.
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*
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* @param g the graphics context
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*/
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public void paint(Graphics g);
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/**
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* Adds a listener to track whenever the caret position
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* has been changed.
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*
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* @param l the change listener
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*/
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public void addChangeListener(ChangeListener l);
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/**
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* Removes a listener that was tracking caret position changes.
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*
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* @param l the change listener
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*/
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public void removeChangeListener(ChangeListener l);
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/**
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* Determines if the caret is currently visible.
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*
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* @return true if the caret is visible else false
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*/
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public boolean isVisible();
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/**
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* Sets the visibility of the caret.
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*
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* @param v true if the caret should be shown,
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* and false if the caret should be hidden
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*/
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public void setVisible(boolean v);
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/**
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* Determines if the selection is currently visible.
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*
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* @return true if the caret is visible else false
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*/
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public boolean isSelectionVisible();
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/**
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* Sets the visibility of the selection
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*
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* @param v true if the caret should be shown,
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* and false if the caret should be hidden
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*/
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public void setSelectionVisible(boolean v);
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/**
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* Set the current caret visual location. This can be used when
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* moving between lines that have uneven end positions (such as
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* when caret up or down actions occur). If text flows
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* left-to-right or right-to-left the x-coordinate will indicate
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* the desired navigation location for vertical movement. If
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* the text flow is top-to-bottom, the y-coordinate will indicate
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* the desired navigation location for horizontal movement.
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*
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* @param p the Point to use for the saved position. This
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* can be null to indicate there is no visual location.
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*/
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public void setMagicCaretPosition(Point p);
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/**
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* Gets the current caret visual location.
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*
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* @return the visual position.
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* @see #setMagicCaretPosition
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*/
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public Point getMagicCaretPosition();
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/**
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* Sets the blink rate of the caret. This determines if
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* and how fast the caret blinks, commonly used as one
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* way to attract attention to the caret.
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*
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* @param rate the delay in milliseconds >=0. If this is
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* zero the caret will not blink.
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*/
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public void setBlinkRate(int rate);
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/**
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* Gets the blink rate of the caret. This determines if
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* and how fast the caret blinks, commonly used as one
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* way to attract attention to the caret.
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*
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* @return the delay in milliseconds >=0. If this is
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* zero the caret will not blink.
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*/
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public int getBlinkRate();
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/**
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* Fetches the current position of the caret.
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*
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* @return the position >=0
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*/
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public int getDot();
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/**
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* Fetches the current position of the mark. If there
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* is a selection, the mark will not be the same as
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* the dot.
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*
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* @return the position >=0
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*/
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public int getMark();
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/**
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* Sets the caret position to some position. This
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* causes the mark to become the same as the dot,
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* effectively setting the selection range to zero.
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* <p>
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* If the parameter is negative or beyond the length of the document,
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* the caret is placed at the beginning or at the end, respectively.
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*
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* @param dot the new position to set the caret to
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*/
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public void setDot(int dot);
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/**
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* Moves the caret position (dot) to some other position,
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* leaving behind the mark. This is useful for
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* making selections.
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*
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* @param dot the new position to move the caret to >=0
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*/
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public void moveDot(int dot);
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};
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